Battery-grid



P. R, BICKIIARI.

BATTERY GRID.

APPLICATION FILED DE01. 1919.

1,3%,957- 1 rammed June 22, 19.20.

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Patented June 2.?, 192@a 2 SIIEETS-SHF.EI 21 ffl h @Mm II I FRANKLIN R. BCKHART, GF PHLDELPH,

BATTERY-GRM).

.ilppleation led .December l, lil-i9.

To all iff/om 'if may WiL/writ.

Be it linowu that l, FiiANiUaN E. Biche iiaii'r, a eitizen ot the ivnited States, reaidinev at Philadelphia, county of Philadelphia, btateI ol Pennsylvaniin have invented a new and usetul Bzitteijvi-(}1'id, ot ivhieh the 'tollowingr is a specification.

My present invention relates to a novel construction ot a battery `Uriel l'or secondary or storage hatteries and more iartieularlvf to the type 'ot storage batteries which are employed on motor veliieles wherein they are subjected to excessive. vibration. lt is essential in a hatterv ot thinA type that the terid whieli forms the support, for the art-ive material contains the naiximnni amount ot metal in order to Secure the highest eliieieneyT within the eell and also that the, `grid he eonstrueted in such a manner that the. aetivii material will he seenredliY held in place and an)7 warping' or hnelilinig ot the ha" plate` prevented. 'llhere is a tend ley in a device ot' this type5 when discharging. of the,

active material to shrink and draw away trom the grid therein/i Causing a high n'itei nal resistanee.

With th l ahove in View my invention comb preliends a novel eonstrnrtion of a liattery `grid in whirh the strains. are eveiil)v distrihuted throughout the entire grid.

lt turther rompreliend: i novel eoiistrnw tion of-a hatteij.7 `grid wherein the grid is l'ormed hy a series oi' triangles the anic-es; ol' whieh on one side of the grid are iii-esented in a dilierent direetion troni the apiees ol' the triangles on the oppoi-iite, Side oi' the grid. Y

li, further eoniinehends a novel eonatruetion olI a hattery 4grid wherein the griii poi`- tion forms,l a series ol' quadrangles having diagonal hrare or tie rihs ivliieh on oni side oll they le'rid extend in a veitieal diieetion and on the opposite :aide ot the grid in a lateral or a horizontal dirertion, so that the entire, iH'truetui'e. is eompleteljiY trussed and the strain to whim it, is auhjeeted is eventi,r distrihuted throughout the grid thuis enaliling it to more, ell'ieiently perform the 'function required of it.

Other novel l'aitizres ot eoiistrnution and advantage will hereinafter more clearly ap- )pear in the detailed deseriiption ot the in- Vention.

' For the purpose @it illustrating my inver:`

tion, have Shown in the accompanying Specicatoii of Letters Fatnt.

Serial No, 341,663.

strumentalities as herein .sliowi and' de- Serihed. A

Figure i represenm in. .side elevation, a, battery griih enihodyingi' my invention.

Fig. Z reinfesents, in side elevationj the hattery Arid vie ved fr )in the oiliposite Side Vfrom which Figi. il is viewed.

l* 2% reiiresents a swt-ion on luie 3 3 of Fie'. 2.

Fig -irepresents; a Setioii en iine of Fig. i

Similar miniera eorresigiendin:1j pa lie terri n l design; invention, The, tangriilaif ineh N tends the landing' post 3. ot the grid is formed with iihs endii diagonally iierof-.sa the liodv par and disposed at Siihstantiailv ri. eaeh other and 'lorraine a tangles. rihe hotly 'Nation is i'ius i on enel Side h v ri'ni` ti vvlai pasa through op'jfiisite angles oi :i roiv oi", rei-.ta ieia and iateri lly in sul@ i 1 -i ,i tion7 as seen in Vlie ojiinosite the. laid)v pi, extend in a pointe angles m a ve The rihfa and "i m. Wai fly from the, renter ei le hiis lie Seen that the as insisting ot whirh on one Side ot the grid apirea presentedin a ,vertieil diree ,\in and. on the opposite side in a ifiterai. direction The ,eji'id nia;7 ae termed as a` unitary stru@ ture hy Casting and. the eoiislgriuetion is auch that an exeellent eaatino' ean he 'iiodueed.

VThe arti ire imiterial ii j he readily welded lh under he proper tiegijree, ol eompreSSiOn Within the oi'ienii'igff-a therehv hringfing it; into the requisite ,relation with the n'ieal supH porting ribs.

The 'top rib the frame 2f, as will efe 11G and 5 @tu Cri CLU

clearly understood by reference to Figs l and 2, preferably tapers toward the binding post El, in order to provide alarge conducting surface at the end of the plate through which the current Inust flow, the result of which is that all parts of the plate will be atlected in the saine manner and the tendency et the current to become concentrated at or near the base of the post with consequent injury to the plate at this point is eliminated,

lt will now be apparent that have devised aI novel and useful battery grid which embodies the features of advantage enumerated desirable in the statement of the invention and the above description, and While 'l' ha re, in the present instance, shown and described a preferred embodiment thereof `af'hich will give in practice satisfactory and reliable resalts, it is to be understood that such embodiment is susceptible.l of rnodilica tion in rarions particulars Without departing troni the spirit or scope. of the invention orsacrilicing any ot its advantages.

Having thus described my invention, what l claim as new and desire to secure by Letters .Pat-ent, is

1. la grid for secondary batteriesA com prising a iframe, opposite sets oi spaced par allel ribs arranged at substantially right kangles to each other7 and opposite sets of spaced parallel ribs angularly arranged With vrelation to the first named ribs and diagonally arranged with relation to said traine.

i rid for secondar i batteries coinprising a frame, opposite sets of spaced parallel ribs arranged at substantially right angles to each other and parallel to the respective sides of said trarne, and opposite 'setsiol spaced parallel ribs angularly arranged with relation to the lirst nalned ribs and diagonally arranged with relation to said lranie.

3. fr grid for secondary batteries coinprisinga frame, and lopposite sets of spaced parallel ribs, said ribs 'forming opposite sets of rectangles, the rectangles of one set being arranged in staggered relation to those of the opposite set.

Il. A grid for secondary batteries coniprising a traine, opposite sets of spaced parallel ribs arranged diagonally of said trarne and forming opposite sets of rectangles,.and other opposite sets of spaced p rallel ribs, each or' said la'st named ribs extending through opposite corners of a row of rectangles and thus forming rows of triangles.

5, A grid for secondary batteries conn prising a traine, opposite sets ot spaced parallel ribs arranged diagonally of said traine and forming opposite sets of rectangles, the rectangles oit-fone set being arranged in staggeredrelation to those of the opposite set, and other opposite sets of spaced parallel ribs, each of said last named ribs extending through opposite corners of a row of the rectangles and 'thus forming rows of triangles.

liltllNhlllN R. BICKHART. Witnesses H. S. BAiananns, H. G. lil/lrrcrnnn, 

